Finding the Fourth Proportional to 8,271.27, 11,416.16 and 5,087.30

Step by Step Solution

1. Step 1: Write the proportion equation
   8,271.27 : 11,416.16 = 5,087.30 : x
2. Step 2: Convert to fraction form
   8,271.27/11,416.16 = 5,087.30/x
3. Step 3: Cross multiply
   8,271.27x = 11,416.16 × 5,087.30
4. Step 4: Simplify right side
   8,271.27x = 58,077,405.33
5. Step 5: Solve for x
   x = 58,077,405.33/8,271.27
6. Step 6: Final answer
   x = 7,021.58